Cutting-wire.



PATENTED APR. 30, 1907.

W. R. CUNNINGHAM.

CUTTING WIRE. APPLICATION FILED MAR.4,1907.

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S'I A'IIES PATENT OFFICE.

WILLIAM R. CUNNINGHAM, OF BUCYRUS, OI-IIO, ASSIGNOR TO THE AMERI- CANCLAY MACHINERY COMPANY, OF BUCYRUS, OIIIO, A CORPORA- TION.

CUTTING-WIRE.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed March 4, 1907. Serial No. 360,551.

To (all Iii/tom it 'ntnq concern:

Be it known that I, WILLIAM R. CUNNING- HAM, a citizen of the UnitedStates, residing at Bucyrus, in the county of Crawford and State ofOhio, have invented new and useful Improvements in Cuttingires, of whichthe following is a specification.

ihly invention relates generally to new and useful improvements incutting devices for brick and tile cutting machines or to any machinewhereby a slab, column or mass of formed clay or other plastic orsemi-plastic material is cut into forms representative of bricks, tilesor other products.

The present invention relates more specific ally to the cutting tableportion of the type of machines above mentioned, and it is applicable tothe usual reciprocating and the oscillating form of frame or carriage orin fact to any frame or carriage or other device wherein cutting wiresare strung under tension and which sever the bar or column of clay orother material in suitable lengths as the wires are passed therethrough.

The object of the present invention is to so improve the attaching endsof the aforesaid cutting wires,. that the wires are more readily placedin position to lessen the liability of the wire breaking; and to shortenthe time required to remove a broken or damaged wire and substitutingtherefor a new wire.

With these primary objects in view, my invention consists, essentially,in supplying the attaching end of the wire with a fixed sphere orenlargement through which the wire is passed and its protruding endsubstan tially returned upon itself and thence carried across the bodyportion to form a small loop or knot, which prevents the wire beingpulled out of the sphere or enlargement or the latter being strippedfrom the wire under the tension or strain to which the wire issubjected.

In the accompanying drawing forming part of this specification, thefigure represents a fragment of one form of wire holder for the cuttingtable of a brick or tile cutting machine, showing my improved cuttingwire and the manner of attaching it to said holder.

In this art, as far as I am aware, the method usually adopted forsecuring wires in the holder, is to twist the end of the wire to form aloop, said loop being thus adapted to hook over a hook or pin on theholder.

Experience has shown that the twisting of the wire, because ofcrystallization or other causes, greatly weakens the wire at the pointof twisting and causes the wire to break; it also often occurs thatduring the twisting operation the wirewhich is usually made of steclisfractured.

In carrying out my invention I use in connection withthe wire anenlargement which may be of spherical or other design but which,preferably, is in the form of a ball A, which term I will hereinafteruse in referring to this part although I do not limit myself to a roundenlargement since one of other forms may be used with success andwithout departing from the scope of my true invention.

The ball A, I provide with a hole B which may be drilled or otherwisemade, and

through this hole the end of the cutting wire C is passed for a suitabledistance. The

protruding free end of the wire I now fold back to form a small loop C,the free end of the wire being carried across the wire substantially atthe point where the wire emerges from the hole in the ball A, therebyforming substantially a knot which prevents the wire being pulled out ofthe ball or, in other words, the ball stripped from the wire, by anypressure or strain tending to move one of the parts oppositely andrelative to the other.

If desired and to obtain additional security from the ball beingdisplaced relative to the wire, I may solder the ball in place.

The small loop C formed at the end of the wire is not to be confoundedwith the loop usually provided at the end of a cutting wire exterior toa twisted portion and which hooks over a pin or hook on the wire holdersince the loop on my wire is merely intended to hold the ball in place,the ball itself being the attaching member and being designed to rest incontact with the forks of a suitable bifurcated support of substantiallythe form of a claw-hammer, the wire itself being passed into the spacebetween said forks, as shown.

By reason of the construction described, I am enabled to shorten thetime required to place a wire in position in its holder, when a wireshould break, and by constructing the wire with the ball, I lessen theliability of the wire breaking from being fractured in l twisting.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is 1. A cutting wire having an enlargementthrough which the wire passes, the end of said wire being extendedbeyond the enlargement and being looped across itself exterior to theenlargement to form a retaining means for the enlargement.

2. A cutting wire and a ball at the attaching end thereof, said wirebeing passed through the ball and having its projecting end loopedbackwardly transversely across the Wire at substantially the junction ofthe wire with the outer surface of the ball, and retaining the ball inplace on the wire.

3'. The combination with a claw-shaped hanger, of a cutting wire havinga ball member seating against the claws of the hanger with the wireentering the space between the claws, said wire having its outer endprojected beyond the ball and thence looped back substantially upon andtransversely across itself, and exterior to the ball member and incontact with said ball member.

In testimony whereof I have hereunto set my hand in presence of twosubscribing Witnesses.

VVILLIAAI R. CUNNINGHAM. l/Vitnesses: R. O. PERROTT, S. E. AUoK.

